InChI=1S/C19H22O7/c1-8-6-18-7-19(8,26)4-3-10(18)9-5-11(20)14(21)17(2,16(24)25)12(9)13(18)15(22)23/h5,10,12-14,21,26H,1,3-4,6-7H2,2H3,(H,22,23)(H,24,25)